Google Developers Blog: FlatBuffers 1.1: a memory-efficient serialization library
FlatBuffers: Main Page
"FlatBuffers is an efficient cross platform serialization library for C++, with support for Java, C# and Go. It was created at Google specifically for game development and other performance-critical applications. Why use FlatBuffers?
- Access to serialized data without parsing/unpacking - What sets FlatBuffers apart is that it represents hierarchical data in a flat binary buffer in such a way that it can still be accessed directly without parsing/unpacking, while also still supporting data structure evolution (forwards/backwards compatibility).
- Memory efficiency and speed - The only memory needed to access your data is that of the buffer. It requires 0 additional allocations. FlatBuffers is also very suitable for use with mmap (or streaming), requiring only part of the buffer to be in memory. Access is close to the speed of raw struct access with only one extra indirection (a kind of vtable) to allow for format evolution and optional fields. It is aimed at projects where spending time and space (many memory allocations) to be able to access or construct serialized data is undesirable, such as in games or any other performance sensitive applications. See the benchmarks for details."
Cap'n Proto: Cap'n Proto, FlatBuffers, and SBE
This could be quite useful for efficient IoT communication...